Durable Aluminum Window Parts , Mechanical Polishing Custom Aluminum Profile

Polished aluminum pipe,aluminum window parts,aluminum window frames

Product Description

Mechanical polishing

Mechanical polishing is an extremely important part of the process, especially for the growth of 6m. Consistent uniformity is to control the mechanical polishing, the main points of the few manufacturers in the pursuit of low cost, less investment, the manual single aluminum polishing, with solid polishing wax, polishing wheel for the production of pure cotton, hardness is small, round 30 ~ 80 mm wide, wheel diameter from 180 ~ 250 mm, the pressure is controlled by manual.

The resulting problems are:

1. The surface is uneven, due to the pressure of the human hand, although the surface of the machine appears to be consistent after the mechanical polishing, the phenomenon of uneven brightness occurs after oxidation.

2. Due to the improper pressure control, the phenomenon of burning in the area of high pressure is caused by the surface roughness and the point of sesame

3. Solid wax is difficult to clean and easily pollutes the triacid tank, and if the solid wax is not high enough, its impurities will destroy the polished surface.

4. The cloth wheel linear velocity is not enough, generally less than 15 m/s, and a soft cloth wheel cutting force is not enough, so is only applicable in fine buffing, coarse depends on hemp wheel, increase the cost of the process

5. Productivity is low.

In view of all these problems, most manufacturers use large polishing machines, automatic multiple polishing, liquid polishing paste, and the wheel group width 800 ~ 1000mm. Wheel diameter from 300 ~ 400 mm, this method is of high production efficiency, relatively stable process, a process can not only play a grinding to remove the purpose of mechanical lines, and can get fine buffing the surface effect, but it must be strict process conditions.

(1) First of all, the work must ensure enough cutting force, this relationship to the minor mechanical lines can remove, the influencing factors of cutting force including hardness and cloth wheel linear velocity of the cloth wheel. Is commonly made of pure cotton cloth round, by starch chemical processing in order to achieve the corresponding hardness, this kind of cloth wheel for aluminium surface polishing, based on other conditions such as the linear velocity, pressure, the influence of the dosage of polishing solution, then choose proper hardness can light and no lines on the surface of cloth round, cloth round of linear velocity is determined by the cloth wheel diameter and equipment conditions, generally between 20 ~ 30 m/s, less than 15 m/s polishing effect is not obvious.

(2) The polishing process must control the interface temperature of the workpiece, usually 115! Or so, temperature is too low to reach the light effect, high temperature produces burnt, interface temperature is made of cloth wheel pressure and speed between aluminum and mutual influence. Generally speaking, the greater the pressure, the slower the forward speed, the higher the temperature of the interface. Cloth wheel pressure must be according to section area, the spacing between the size and thickness to adjust to the appropriate size, polishing machine speed can be controlled in general 10 ~ 15 m/min, the cloth wheel pressure limit, optional choose the lower pressure is lesser, cloth round to ensure that the interface at the appropriate temperature range.

(3) Polishing liquid choice to have an important influence on the polishing quality, polishing process should not only have the effect of grinding to grain, and to have the leveling light effect, polishing of quartz sand and liquid paraffin can respectively the above role, especially the content of quartz sand must be appropriate, meet too much quartz sand, aluminum surface has mild abrasive grain, especially after three acid oxidation, make quality decline.

(4) The consistency of the horizontal and vertical polishing effect is a high quality mechanical polishing quality, except for the polishing machine superior performance, must choose high pressure automatic spray gun, the gun equipped with pressure device, can make the polishing liquid jet pressure increased by more than 25 times, make timely atomization, 120 ∋ injection Angle, ensure the polishing fluid in the polishing wheel each part and each time the cylindrical uniform, also make the polishing liquid dosage was reduced to a minimum, and achieve the best effect, ordinary spray gun pressure usually around five times, polishing liquid is difficult to fully atomized, it is often outflow, causing uneven distribution, insufficient lubrication and polishing liquid waste.